---
title: "writeAttributeBarrierOpenPeriod(withValue:expectedValueInterval:)"
framework: matter
role: symbol
role_heading: Instance Method
path: "matter/mtrclusterbarriercontrol/writeattributebarrieropenperiod(withvalue:expectedvalueinterval:)"
---

# writeAttributeBarrierOpenPeriod(withValue:expectedValueInterval:)

## Declaration

```swift
func writeAttributeBarrierOpenPeriod(withValue dataValueDictionary: [String : Any], expectedValueInterval expectedValueIntervalMs: NSNumber)
```